Hydraulics & Fluid Mechanics
In a two dimensional incompressible steady flow around an airfoil, the stream lines are 2 cm apart at a great distance from the airfoil, where the velocity is 30 m/sec. The velocity near the airfoil, where the stream lines are 1.5 cm apart, is

33 M/SEC
50 M/SEC
40 M/SEC
22.5 M/SEC

ANSWER DOWNLOAD EXAMIANS APP

Hydraulics & Fluid Mechanics
Two dimensional flow occurs when

the fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane
the magnitude and direction of the velocity do not change from point to point in the fluid
the direction and magnitude of the velocity at all points are identical
the velocity of successive fluid par-ticles, at any point, is the same at suc-cessive periods of time

ANSWER DOWNLOAD EXAMIANS APP

Hydraulics & Fluid Mechanics
True one-dimensional flow occurs when

the velocity of successive fluid par-ticles, at any point, is the same at suc-cessive periods of time
the fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane
the direction and magnitude of the veiocity at all points are identical
the magnitude and direction of the velocity do not change from point to point in the fluid

ANSWER DOWNLOAD EXAMIANS APP

Hydraulics & Fluid Mechanics
The normal stress is same in all directions at a point in a fluid

only when the fluid is incompressible and has zero viscosity
irrespective of the motion of one fluid layer relative to an adjacent layer
When there is no motion of one fluid layer relative to an adjacent layer
only when the fluid is frictionless

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Hydraulics & Fluid Mechanics